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FR701723A - Improvements made to electric discharge tubes - Google Patents

Improvements made to electric discharge tubes

Info

Publication number
FR701723A
FR701723A FR701723DA FR701723A FR 701723 A FR701723 A FR 701723A FR 701723D A FR701723D A FR 701723DA FR 701723 A FR701723 A FR 701723A
Authority
FR
France
Prior art keywords
electric discharge
improvements made
discharge tubes
tubes
electric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR701723A publication Critical patent/FR701723A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/20—Selection of substances for gas fillings; Specified operating pressures or temperatures
FR701723D 1929-10-31 1930-09-05 Improvements made to electric discharge tubes Expired FR701723A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3317929A GB342715A (en) 1929-10-31 1929-10-31 Improvements in or relating to electric discharge tubes

Publications (1)

Publication Number Publication Date
FR701723A true FR701723A (en) 1931-03-21

Family

ID=10349576

Family Applications (1)

Application Number Title Priority Date Filing Date
FR701723D Expired FR701723A (en) 1929-10-31 1930-09-05 Improvements made to electric discharge tubes

Country Status (2)

Country Link
FR (1) FR701723A (en)
GB (1) GB342715A (en)

Also Published As

Publication number Publication date
GB342715A (en) 1931-02-02

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